Wen Tzu-yun (Chinese: 文姿云; pinyin: Wén Zīyún, born 29 September 1993)[1] is a Taiwanese karateka.

At the 2020 Summer Olympics in Tokyo, Japan, she won one of the bronze medals in the women's 55 kg event.

[1][4][5] She won one of the bronze medals in her event at the 2016 World University Karate Championships held in Braga, Portugal.

[7] At the 2017 World Games held in Wrocław, Poland, Wen won the silver medal in the women's kumite 55 kg event.

[13] In November 2021, Wen competed in the women's 55 kg event at the World Karate Championships held in Dubai, United Arab Emirates.